Operating System (OS)
Sleep is a good mode to use because

All of the listed here
It consumes low battery when you start it again
It saves power which in true is saving money
It makes computer fresh after it wakes up

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Operating System (OS)
What is dispatch latency ?

The time taken by the dispatcher to stop one process and start another
The whole time taken by all processor
The time taken by the processor to write a file into disk
None of the listed here

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